Talk to a lot of native English speakers. We don't bite. We are all willing to help, and we love when people are trying to learn the language! You should also practice the language whenever you can. Speaking it is the best practice.

You must practise as much as you can. Repeat phrases and sentences until you can say them automatically. I don't know how many English people you know in Morocco, but try to speak with them at every opportunity. Malheureusement, Il n'y a aucun rapide ou facile façon de faire ça. (Je dois pratiquer mon Français aussi) :)